org.dellroad.stuff.vaadin7

Class BlobField

java.lang.Object

com.vaadin.server.AbstractClientConnector

com.vaadin.ui.AbstractComponent

com.vaadin.ui.AbstractField<T>

com.vaadin.ui.CustomField<byte[]>

org.dellroad.stuff.vaadin7.BlobField

All Implemented Interfaces:

Buffered, BufferedValidatable, Property<byte[]>, Property.Editor, Property.ReadOnlyStatusChangeListener, Property.ReadOnlyStatusChangeNotifier, Property.ValueChangeListener, Property.ValueChangeNotifier, Property.Viewer, Validatable, Action.ShortcutNotifier, ContextClickEvent.ContextClickNotifier, MethodEventSource, ClientConnector, Sizeable, Connector, Component, Component.Focusable, Field<byte[]>, HasComponents, Upload.FailedListener, Upload.ProgressListener, Upload.Receiver, Upload.StartedListener, Upload.SucceededListener, Serializable, Iterable<Component>

public class BlobField
extends CustomField<byte[]>
implements Serializable, Upload.Receiver, Upload.StartedListener, Upload.ProgressListener, Upload.SucceededListener, Upload.FailedListener

A Vaadin Field for editing Propertys with byte[] array values (i.e., "blobs"). The blob is updated using a file upload.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.vaadin.ui.AbstractField

AbstractField.FocusShortcut, AbstractField.ReadOnlyStatusChangeEvent

Nested classes/interfaces inherited from interface com.vaadin.ui.HasComponents

HasComponents.ComponentAttachDetachNotifier, HasComponents.ComponentAttachEvent, HasComponents.ComponentAttachListener, HasComponents.ComponentDetachEvent, HasComponents.ComponentDetachListener

Nested classes/interfaces inherited from interface com.vaadin.ui.Component

Component.ErrorEvent, Component.Event, Component.Focusable, Component.Listener

Nested classes/interfaces inherited from interface com.vaadin.server.ClientConnector

ClientConnector.AttachEvent, ClientConnector.AttachListener, ClientConnector.ConnectorErrorEvent, ClientConnector.DetachEvent, ClientConnector.DetachListener

Nested classes/interfaces inherited from interface com.vaadin.server.Sizeable

Sizeable.Unit

Nested classes/interfaces inherited from interface com.vaadin.ui.Field

Field.ValueChangeEvent

Nested classes/interfaces inherited from interface com.vaadin.data.Buffered

Buffered.SourceException

Nested classes/interfaces inherited from interface com.vaadin.data.Property

Property.Editor, Property.ReadOnlyException, Property.ReadOnlyStatusChangeListener, Property.ReadOnlyStatusChangeNotifier, Property.Transactional<T>, Property.ValueChangeListener, Property.ValueChangeNotifier, Property.Viewer

Field Summary

Fields

Modifier and Type	Field and Description
protected Logger	log

Fields inherited from class com.vaadin.ui.AbstractComponent

DESIGN_ATTR_PLAIN_TEXT

Fields inherited from interface com.vaadin.server.Sizeable

SIZE_UNDEFINED, UNITS_CM, UNITS_EM, UNITS_EX, UNITS_INCH, UNITS_MM, UNITS_PERCENTAGE, UNITS_PICAS, UNITS_PIXELS, UNITS_POINTS

Constructor Summary

Constructors

Constructor and Description
BlobField() Constructor.

Method Summary

Modifier and Type	Method and Description
void	attach()
void	detach()
Label	getDescriptionLabel() Get the description Label associated with this instance.
Class<byte[]>	getType()
Upload	getUpload() Get the Upload associated with this instance.
protected Component	initContent()
OutputStream	receiveUpload(String filename, String mimeType)
protected void	setInternalValue(byte[] value)
protected void	updateDisplay() Update the description label to reflect the current property value and read-only status.
void	updateProgress(long readBytes, long contentLength)
void	uploadFailed(Upload.FailedEvent event)
void	uploadStarted(Upload.StartedEvent event)
void	uploadSucceeded(Upload.SucceededEvent event)

Methods inherited from class com.vaadin.ui.CustomField

getContent, iterator, setHeight, setWidth

Methods inherited from class com.vaadin.ui.AbstractField

addListener, addListener, addReadOnlyStatusChangeListener, addValidator, addValueChangeListener, beforeClientResponse, clear, commit, discard, fireReadOnlyStatusChange, fireValueChange, focus, getConversionError, getConversionError, getConvertedValue, getConverter, getCurrentBufferedSourceException, getCustomAttributes, getErrorMessage, getInternalValue, getModelType, getPropertyDataSource, getRequiredError, getState, getState, getTabIndex, getValidators, getValue, isBuffered, isEmpty, isImmediate, isInvalidAllowed, isInvalidCommitted, isModified, isReadOnly, isRequired, isValid, isValidationVisible, readDesign, readOnlyStatusChange, removeAllValidators, removeListener, removeListener, removeReadOnlyStatusChangeListener, removeValidator, removeValueChangeListener, setBuffered, setConversionError, setConvertedValue, setConverter, setConverter, setCurrentBufferedSourceException, setInvalidAllowed, setInvalidCommitted, setLocale, setPropertyDataSource, setReadOnly, setRequired, setRequiredError, setTabIndex, setValidationVisible, setValue, setValue, setValue, shouldHideErrors, toString, validate, validate, valueChange, writeDesign

Methods inherited from class com.vaadin.ui.AbstractComponent

addContextClickListener, addListener, addShortcutListener, addStyleName, findAncestor, fireComponentErrorEvent, fireComponentEvent, getActionManager, getCaption, getComponentError, getData, getDebugId, getDescription, getExplicitImmediateValue, getHeight, getHeightUnits, getIcon, getId, getLocale, getParent, getPrimaryStyleName, getStyleName, getWidth, getWidthUnits, isCaptionAsHtml, isConnectorEnabled, isEnabled, isOrHasAncestor, isResponsive, isVisible, removeContextClickListener, removeListener, removeShortcutListener, removeStyleName, setCaption, setCaptionAsHtml, setComponentError, setData, setDebugId, setDescription, setEnabled, setHeight, setHeightUndefined, setIcon, setId, setImmediate, setParent, setPrimaryStyleName, setResponsive, setSizeFull, setSizeUndefined, setStyleName, setStyleName, setVisible, setWidth, setWidthUndefined

Methods inherited from class com.vaadin.server.AbstractClientConnector

addAttachListener, addDetachListener, addExtension, addListener, addListener, addListener, addMethodInvocationToQueue, createState, encodeState, equals, fireEvent, getAllChildrenIterable, getConnectorId, getErrorHandler, getExtensions, getListeners, getResource, getRpcManager, getRpcProxy, getSession, getStateType, getUI, handleConnectorRequest, hashCode, hasListeners, isAttached, isThis, markAsDirty, markAsDirtyRecursive, registerRpc, registerRpc, removeAttachListener, removeDetachListener, removeExtension, removeListener, removeListener, removeListener, removeListener, requestRepaint, requestRepaintAll, retrievePendingRpcCalls, setErrorHandler, setResource

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.vaadin.ui.Component

addListener, addStyleName, getCaption, getDescription, getIcon, getId, getLocale, getParent, getPrimaryStyleName, getStyleName, getUI, isEnabled, isReadOnly, isVisible, readDesign, removeListener, removeStyleName, setCaption, setEnabled, setIcon, setId, setParent, setPrimaryStyleName, setReadOnly, setStyleName, setVisible, writeDesign

Methods inherited from interface com.vaadin.server.ClientConnector

addAttachListener, addDetachListener, beforeClientResponse, encodeState, getErrorHandler, getExtensions, getRpcManager, getStateType, handleConnectorRequest, isAttached, isConnectorEnabled, markAsDirty, markAsDirtyRecursive, removeAttachListener, removeDetachListener, removeExtension, requestRepaint, requestRepaintAll, retrievePendingRpcCalls, setErrorHandler

Methods inherited from interface com.vaadin.shared.Connector

getConnectorId

Methods inherited from interface com.vaadin.server.Sizeable

getHeight, getHeightUnits, getWidth, getWidthUnits, setHeight, setHeightUndefined, setSizeFull, setSizeUndefined, setWidth, setWidthUndefined

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface com.vaadin.event.Action.ShortcutNotifier

addShortcutListener, removeShortcutListener

Field Detail

log

protected final Logger log

Constructor Detail

BlobField

public BlobField()

Constructor.

Method Detail

attach

public void attach()

Specified by:

attach in interface ClientConnector

Specified by:

attach in interface Component

Overrides:

attach in class CustomField<byte[]>

detach

public void detach()

Specified by:

detach in interface ClientConnector

Overrides:

detach in class AbstractField<byte[]>

getUpload

public Upload getUpload()

Get the Upload associated with this instance.

Returns:

the associated Upload

getDescriptionLabel

public Label getDescriptionLabel()

Get the description Label associated with this instance.

Returns:

the associated description

getType

public Class<byte[]> getType()

Specified by:

getType in interface Property<byte[]>

Specified by:

getType in class AbstractField<byte[]>

initContent

protected Component initContent()

Specified by:

initContent in class CustomField<byte[]>

setInternalValue

protected void setInternalValue(byte[] value)

Overrides:

setInternalValue in class AbstractField<byte[]>

receiveUpload

public OutputStream receiveUpload(String filename,
                                  String mimeType)

Specified by:

receiveUpload in interface Upload.Receiver

uploadStarted

public void uploadStarted(Upload.StartedEvent event)

Specified by:

uploadStarted in interface Upload.StartedListener

updateProgress

public void updateProgress(long readBytes,
                           long contentLength)

Specified by:

updateProgress in interface Upload.ProgressListener

uploadSucceeded

public void uploadSucceeded(Upload.SucceededEvent event)

Specified by:

uploadSucceeded in interface Upload.SucceededListener

uploadFailed

public void uploadFailed(Upload.FailedEvent event)

Specified by:

uploadFailed in interface Upload.FailedListener

updateDisplay

protected void updateDisplay()

Update the description label to reflect the current property value and read-only status.